Style Access mode selects like other dropdowns.

Use theme-select so Access mode shows a chevron and matches Theme/Scope kind.

webui/src/App.tsx

@@ -679,7 +679,7 @@ function NetworkConfigTab() {
         <label htmlFor="network-access-mode">Access mode</label>
         <select
           id="network-access-mode"
-          className="config-input"
+          className="theme-select"
           value={draft.access_mode}
           onChange={(event) => {
             setDraft((previous) => ({

webui/src/SetupWizard.tsx

@@ -396,7 +396,7 @@ export function SetupWizard({ clientIp, onCompleted }: SetupWizardProps) {
               <label htmlFor="setup-access-mode">Access mode</label>
               <select
                 id="setup-access-mode"
-                className="config-input"
+                className="theme-select"
                 value={network.access_mode}
                 onChange={(event) =>
                   setNetwork((previous) => ({